Answer:
Adjourning
Explanation:
The team development stage was proposed by Tuckman. Adjourning is the fifth stage of team development. This stage sometimes called a mourning stage because at this stage the team gets disband. At this stage, the members of the team start to get closer and feel a loss sometimes that means the experience related to this stage is over.
Thus in the above statement, People are on the adjourning stage where they give a presentation and can not believe that they have completed their project. The team is experiencing the adjourning stage.